How long is the flight from Rapid City to Helena?

A quick flight from Rapid City to Helena can take about 6h 40m. United Airlines provides one of the quickest options available for as low as $668. The distance from Rapid City to Helena is about 468 mi.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from RAP to HLN?

When flying from Rapid City to Helena, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Rapid City to Helena that include hotel bookings?

Yes. In addition to deals on Rapid City to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rapid City to Helena?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Helena.

Can I find deals for business class flights from Rapid City to Helena?

Yes. Cheapflights offers flight deals from Rapid City to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$668+ Cheap Flights from Rapid City to Helena

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Cheap flight deals from Rapid City to Helena

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Best flights from Rapid City to Helena
Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.

Tue 1/127:00 am -

1 stop6h 40m

Tue 1/192:27 pm -

2 stops31h 11m

Deal found 10/26

$668

Find flight deals from Rapid City to Helena

Round-trip from	$339 (United Airlines)

From Rapid City to Helena

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Rapid CityHelena

RAP Rapid City - HLN Helena

RAPHLN

Rapid City

Tue 1/12

7:00 am-1:40 pm

1 stop6h 40m

Helena

Tue 1/19

2:27 pm-9:38 pm

2 stops31h 11m

$668

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Deals found on 10/26

Sorted by cheapest first

Best time to book a flight from Rapid City to Helena

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RAP-HLN

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Related info for your journey

How long is the flight from Rapid City to Helena?
A quick flight from Rapid City to Helena can take about 6h 40m. United Airlines provides one of the quickest options available for as low as $668. The distance from Rapid City to Helena is about 468 mi.
Can I find deals for flights from Rapid City to Helena that include hotel bookings?
Yes. In addition to deals on Rapid City to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rapid City to Helena?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Helena.
Can I find deals for business class flights from Rapid City to Helena?
Yes. Cheapflights offers flight deals from Rapid City to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rapid City to Helena with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Rapid City to Helena

Best flights from Rapid City to Helena
Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.

Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.

Find flight deals from Rapid City to Helena

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Use the filters below to find and compare flights from Rapid City to Helena that are best for you.

Best time to book a flight from Rapid City to Helena

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Related info for your journey

How long is the flight from Rapid City to Helena?

Can I find deals for flights from Rapid City to Helena that include hotel bookings?

How can I find direct flights from Rapid City to Helena?

Can I find deals for business class flights from Rapid City to Helena?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Rapid City to Helena

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Complete your trip

Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Rapid City to Helena by cabin class

Find flights from Rapid City to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Helena

Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 29, 2026.

Rapid City and Helena flights

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Other flights from Rapid City

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$668+ Cheap flights from Rapid City to Helena (RAP - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rapid City to Helena with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Rapid City to Helena

Best flights from Rapid City to HelenaDiscover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.

Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.

Find flight deals from Rapid City to Helena

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rapid City to Helena that are best for you.

Best time to book a flight from Rapid City to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Rapid City with our price prediction graph.

Related info for your journey

How long is the flight from Rapid City to Helena?

Can I find deals for flights from Rapid City to Helena that include hotel bookings?

How can I find direct flights from Rapid City to Helena?

Can I find deals for business class flights from Rapid City to Helena?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Rapid City to Helena

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Rapid City to Helena by cabin class

Find flights from Rapid City to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Helena

Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 29, 2026.

Rapid City and Helena flights

Browse other Rapid City and Helena flight options. Last updated on October 29, 2026.

Other flights from Rapid City

Browse through other flights departing from Rapid City. Flights are based on user searches made on Cheapflights and were last updated on October 29, 2026.

Popular flight searches

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Best flights from Rapid City to Helena
Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.